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  • 18-08-2016
  • Mathematics
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how do you solve system of equations with -x+3y=0 & 2x+6y=12

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Аноним Аноним
  • 18-08-2016
There are 3 available methods - Substitution , Elimination and Matrix.  

The substitution method is used to eliminate one of the variables by replacement. 

The elimination method is used for solving linear systems. 

A Matrix is an array of numbers. 

Lets use Substitution to solve this system.  

[tex]x+3y=0[/tex] 

[tex]x=-3y [/tex] 

Substitute [tex]x=-3y [/tex] into [tex]2x+6y=12[/tex] 

[tex]2x+6y=12[/tex] 

[tex]2*-3y+6y=12[/tex] 

[tex]0=12[/tex] 

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